diff options
| author | Vegard Storheil Eriksen <zyp@jvnv.net> | 2016-08-14 18:39:43 +0200 |
|---|---|---|
| committer | Vegard Storheil Eriksen <zyp@jvnv.net> | 2016-08-18 23:36:07 +0200 |
| commit | d2086a59c15125a0503649ecbadadfdb9fc23b2f (patch) | |
| tree | 400455ac5efc3b3f70e604618a803c1a68edd8a2 /spi | |
| parent | 7b2d322df819e8a339cdb534e69d8e205765d3b2 (diff) | |
STM32L0: Added SPI1.
Diffstat (limited to 'spi')
| -rw-r--r-- | spi/spi.h | 11 |
1 files changed, 8 insertions, 3 deletions
@@ -7,7 +7,10 @@ struct SPI_reg_t { volatile uint32_t CR1; volatile uint32_t CR2; volatile uint32_t SR; - volatile uint32_t DR; + union { + volatile uint32_t DR; + volatile uint8_t DR8; + }; volatile uint32_t CRCPR; volatile uint32_t RXCRCR; volatile uint32_t TXCRCR; @@ -22,13 +25,13 @@ class SPI_t { SPI_t(uint32_t reg_addr) : reg(*(SPI_reg_t*)reg_addr) {} uint8_t transfer_byte(uint8_t out = 0) { - reg.DR = out; + reg.DR8 = out; while(!(reg.SR & 0x01)) { Thread::yield(); } - return reg.DR; + return reg.DR8; } }; @@ -44,6 +47,8 @@ static SPI_t SPI3(0x40003c00); static SPI_t SPI1(0x40013000); static SPI_t SPI2(0x40003800); static SPI_t SPI3(0x40003c00); +#elif defined(STM32L0) +static SPI_t SPI1(0x40013000); #endif #endif |